发明名称 |
Method and apparatus for generating halftone images with adjusted screen angles |
摘要 |
Each image area in a total image is assigned with a screen angle mode Ms indicating whether screen angles of magenta and cyan separations are to be adjusted or not. Screen angle data representing screen angles of magenta and cyan are produced according to the screen angle modes Ms. A dot signal for recording a halftone image of each of the magenta and the cyan separations is generated by comparing screen pattern data of a certain screen angle specified by the screen angle data with image data for each color separation. Accordingly, the present invention effectively prevents a moire in any image area included in a printing image.
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申请公布号 |
US5546197(A) |
申请公布日期 |
1996.08.13 |
申请号 |
US19960583583 |
申请日期 |
1996.01.05 |
申请人 |
DAINIPPON SCREEN MFG. CO., LTD. |
发明人 |
SHIBAZAKI, HIROSHI;SASAHARA, MASAYUKI |
分类号 |
H04N1/405;G06K15/02;G06T5/00;H04N1/40;H04N1/46;H04N1/52;H04N1/60;(IPC1-7):H04N1/21;H04N1/23 |
主分类号 |
H04N1/405 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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